"Song of Harmony" is an ancient Yuefu title dating back to the Han, Wei, and Six Dynasties periods, often used to express the sorrows of palace life. Liu Fangping lived during the Dali and Guangde eras of Emperor Daizong of Tang—a time of eunuch dominance, regional warlordism, and widespread frustration among court officials and scholars. This poem continues the tradition of "palace grievance poetry," adopting a persona to voice the loneliness and despair of a neglected palace lady. "Jieyu" (婕妤) was originally a rank for imperial consorts during the Han Dynasty; Tang poets often used it to represent secluded and discontented palace women. Through the voice of a Jieyu, the poet depicts not only the desolate isolation within the cold palace but also reflects the Tang scholars’ own experience of unrecognized talent and suppressed anguish.